I was wondering if any of you use both. Sometimes I use both and if I'm with someone I like for her to use both. Also I took an idea from an Alissa inflatables video where she poked a hole in a beach ball and put a balloon in the hole and did a blow to pop. I figured out after that you can push a 12 inch balloon in the valve of a beach ball and even use the valve to keep air in the balloon and beach ball at the same time!